Abstract: The invention relates to a device and process for handling and controlling the yarn (2) in a crosswinding head of a crosswinding machine during the starting operations of a new lot, said crosswinding machine being equipped with a series of crosswinding heads and at least one service trolley (16), wherein the end of the yarn (2) of a new pirn is collected by the suction mouth (7) on the pirn (1) side and delivered to the joining device (9), from where it is, in turn, collected by the suction mouth (8) on the side of the bobbin and, after the suction mouth (8) has rotated until it is close to the driving and traversing cylinder (6), engaging the yarn (2) on its back during the movement, which is transferred from this to the handling device (15) of the service trolley (16).

Abstract: The invention relates to a device and a process for the handling and control of the yarn (1) in a crosswinding head of a crosswinding machine in bobbin (2) doffing operations, said crosswinding machine being equipped with a series of crosswinding heads and at least one service trolley (13), in which the yarn (1) run is moved to a definite position, near the end portion of its course from the pirn to the bobbin (2) and the yarn (1) is subsequently drawn from a handling device (12) of the service trolley (13), cut and, after removal of the bobbin (2), its end coming from the pirn, is arranged on a new winding tube.

Abstract: The invention relates to a device for the automatic doffing of bobbins in a crosswinding machine, of the type comprising a rolling chute (5) on which the bobbin is free to roll towards a conveyor belt (4), wherein said rolling chute (5) is hinged around a rotation pin (8), around which it can rotate varying the level difference between its ends, a flap (9) being hinged to the end of said rolling chute (5) facing the conveyor belt (4), whose portion facing the conveyor belt (4) slides on a fixed supporting counter-edge (11).